Results 41 to 50 of about 20,995 (255)
Fast and slow feedforward inhibitory circuits for cortical odor processing
eLife, 2022 Feedforward inhibitory circuits are key contributors to the complex interplay between excitation and inhibition in the brain. Little is known about the function of feedforward inhibition in the primary olfactory (piriform) cortex.
Norimitsu Suzuki +4 more
doaj +1 more source
Rhythmic Spontaneous Activity in the Piriform Cortex [PDF]
Cerebral Cortex, 2007 Slow spontaneous rhythmic activity is generated and propagates in neocortical slices when bathed in an artificial cerebrospinal fluid with ionic concentrations similar to the ones in vivo. This activity is extraordinarily similar to the activation of the cortex in physiological conditions (e.g., slow-wave sleep), thus representing a unique in vitro ...
Sánchez-Vives, María V. +5 more
openaire +3 more sources
Topics in Cognitive Science, EarlyView., 2023 Abstract Representational drift is a phenomenon of increasing interest in the cognitive and neural sciences. While investigations are ongoing for other sensory cortices, recent research has demonstrated the pervasiveness in which it occurs in the piriform cortex for olfaction.
Ann‐Sophie Barwich +1 more
wiley +1 more source
Top-down feedback enables flexible coding strategies in the olfactory cortex
Cell Reports, 2022 Summary: In chemical sensation, multiple models have been proposed to explain how odors are represented in the olfactory cortex. One hypothesis is that the combinatorial identity of active neurons within sniff-related time windows is critical, whereas ...
Zhen Chen, Krishnan Padmanabhan
doaj +1 more source
Neurons and circuits for odor processing in the piriform cortex [PDF]
, 2013 Increased understanding of the early stages of olfaction has lead to a renewed interest in the higher brain regions responsible for forming unified ‘odor images’ from the chemical components detected by the nose.
Bekkers, John MacDonald +1 more
core +1 more source
Complementary Sensory and Associative Microcircuitry in Primary Olfactory Cortex [PDF]
, 2011 The three-layered primary olfactory (piriform) cortex is the largest component of the olfactory cortex. Sensory and intracortical inputs converge on principal cells in the anterior piriform cortex (aPC).Wecharacterize organization principles of the ...
Beed, Prateep +5 more
core +2 more sources
Representations of Odor in the Piriform Cortex [PDF]
Neuron, 2009 Olfactory perception is initiated by the recognition of odorants by a large repertoire of receptors in the sensory epithelium. A dispersed pattern of neural activity in the nose is converted into a segregated map in the olfactory bulb. How is this representation transformed at the next processing center for olfactory information, the piriform cortex ...
Stettler, Dan D., Axel, Richard
openaire +3 more sources
Nonsensory target-dependent organization of piriform cortex [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance The mammalian olfactory system is capable of detecting and discriminating a vast and diverse array of small organic molecules or odorants. Complex blends of these chemicals are finally perceived as a unified odor object—for example, a rose contains dozens of active compounds.
Chien-Fu F, Chen +5 more
openaire +2 more sources
NeuroImage, 2021 Olfaction could prove to be an early marker of neurodegenerative diseases, including Alzheimer's and Parkinson's diseases. To use olfaction for disease diagnosis, elucidating the standard olfactory functions in healthy humans is necessary.
Yuka Donoshita +3 more
doaj +1 more source
Olfactory function in focal epilepsies: Understanding mesial temporal lobe epilepsy beyond the hippocampus [PDF]
, 2019 Several lines of research have linked olfactory regions with the pathophysiology of focal epilepsies. Among those regions, the piriform cortex represents the major part of the primary olfactory cortex.
Aledo Serrano, Angel +6 more
core +2 more sources